Charles Talleyrand wrote:
Type of plane
I have a VFR Cessna 150.

M20

Most important control
Radio transmit

Yoke

Least important control
Pitot heat (if you need it, you shouldn't be flying)

Why shouldn't you be flying if you need pitot heat?
I would say landing light is the least important. I only use it for
taxiing.

Never working control
Parking brake

DME slave to nav #2. Slaves to nav #1, just not to #2. Avionics tech
gave me complicated answer, translation "it won't work".

Scariest control
Landing light (when it suddenly failed during a night landing)

On the Decathlon it was the door eject lever. On the Mooney, maybe the
emergency gear extention?

Control I never use
Transponder test

Marker beacon brightness

Control in the wrong place
Fuel shutoff (right where me feet can kick it)

Fuel selector. I'm long armed so its not a big deal, others who have
flown my plane have a very difficult time reaching it.

Control I fixate about
Mixture

Gear

Control that impresses non-pilot passengers
GPS on button

Red flashing "auto pilot not engaged" light.

-Robert